Barred Tinamou vs Grey Tinamou
Crypturellus casiquiare в сравнении с Tinamus tao
Side-by-Side Comparison
| Характеристика | Barred Tinamou | Grey Tinamou |
|---|---|---|
| Научное название | Crypturellus casiquiare | Tinamus tao |
| Отряд | Tinamiformes | Tinamiformes |
| Семейство | Tinamidae | Tinamidae |
| Охранный статус | Least Concern | Vulnerable |
| Длина | — | — |
| Размах крыльев | 27,0 cm (10.6 in) | 55,7 cm (21.9 in) |
| Масса | 287,625 g (10.15 oz) | 1674,5 g (59.07 oz) |
| Питание | Grazes grasses and aquatic vegetation near wetland edges; sedges and stems dominate diet; supplements with … | Herbivorous tinamou feeding on seeds, fruits, and tender leaves in Andean foothills; occasionally takes insects … |
| Размер кладки | -- | 2-9 |
| Population Trend | — | — |
Habitat Comparison
Barred Tinamou
Restricted to humid lowland forest along the Casiquiare canal region of southern Venezuela and extreme northwestern Brazil. Associated with river-edge and flooded forest at low elevations. Rarely recorded.
Grey Tinamou
Tropical and subtropical humid montane forest from Venezuela and Colombia south to Bolivia and northern Brazil at 200–1,800 m. Favors dense undergrowth near forest streams. Nests on the ground among leaf litter.
Song & Call Comparison
Barred Tinamou
A slow, hollow whistle from blackwater river forest of the upper Orinoco. Call is distinctive but rarely recorded given its restricted range on the Venezuela-Colombia border.
Grey Tinamou
A series of haunting, flute-like hollow whistles 'whooo-wooo' delivered at dawn and dusk from within humid forest. Mournful, far-carrying quality typical of large forest tinamous.
Geographic Range & Migration
Barred Tinamou
Inhabits savannas and forest edges of northeastern Brazil's semi-arid Caatinga region. Sedentary and endemic to this biome.
Grey Tinamou
Found in open habitats across South America from Colombia and Venezuela to Chile and Argentina. Sedentary; some local altitudinal shifts.
Охранный статус
Barred Tinamou
Grey Tinamou
How to Tell Them Apart
Barred Tinamou
Heavily and boldly barred throughout; upperparts dark brown with broad black bars. Crown blackish; face pale. Throat whitish; breast and flanks strongly barred black and buff. Belly whitish.
Grey Tinamou
Uniform dark slate-gray upperparts finely vermiculated with black. Throat whitish; breast pale gray. Flanks barred with dark brown. Sexes similar; cryptic plumage suits humid forest floor.
About These Birds
Barred Tinamou
A small tinamou with distinctly barred brown-and-buff plumage. Restricted to the Casiquiare region of Venezuela and adjacent northwestern Brazil—one of the most restricted tinamou ranges. Nearly all data come from specimens. Inhabits humid lowland forest along river systems.
Grey Tinamou
A large tinamou with uniform grey-brown plumage, barred flanks, and a long pale bill. Terrestrial and cryptic, moving silently through undergrowth. Found in Andean foothills and montane forests. Males incubate brilliantly colored turquoise-green eggs alone. Often detected by its haunting flute-like call at dawn.